Elements, Compounds, Mixtures

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Across
  1. 4. The basic unit of a chemical element
  2. 6. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
  3. 9. physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.
  4. 10. H2O+NaCl
Down
  1. 1. a part or aspect of something abstract, especially one that is essential or characteristic.
  2. 2. a substance made by mixing other substances together.
  3. 3. H2O
  4. 5. a thing that is composed of two or more separate elements; a mixture.
  5. 7. He
  6. 8. a mathematical relationship or rule expressed in symbols.